Control unit for an irrigation system



FIG. 1 is a perspective view of my new control unit with closed cover;

FIG. 2 is a front view of my new control unit;

FIG. 3 is a left side view of my new control unit;

FIG. 4 is a top plan view of my control unit;

FIG. 5 is a right side view of my new control unit;

FIG. 6 is a bottom plan view of my control unit; and,

FIG. 7 is a perspective view of my control unit with open cover. 

The ornamental Design for “control unit for an irrigation system”, as shown and described. 